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7px}.move-played{color:var(--ink);background:#d4af3713}.move-current{color:var(--clay);background:var(--clay-pale);font-weight:800}.move-hidden{color:#565652}.stats-strip{grid-template-columns:repeat(3,1fr);display:grid;overflow:hidden}.stats-strip>div{border-left:1px solid var(--line);flex-direction:column;align-items:center;gap:3px;padding:11px 5px;display:flex}.stats-strip>div:first-child{border-left:0}.stats-strip strong{font-family:var(--font-mono);font-size:13px}.stats-strip span{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;font-size:7px;font-weight:700}.loading-state,.fatal-state{place-items:center;min-height:100vh;display:grid}.loading-state{color:var(--muted);font-family:var(--font-mono);align-content:center;gap:10px;font-size:11px}.loading-state p{margin:0}.spin{animation:.8s linear infinite spin}.fatal-card{border:1px solid var(--line-dark);background:var(--paper-strong);width:min(520px,100% - 32px);box-shadow:var(--shadow);border-radius:10px;padding:34px}.fatal-card .app-mark{margin-bottom:25px}.fatal-card h1{font-family:var(--font-serif);margin:0;font-size:32px;line-height:1.05}.fatal-card>p:not(.eyebrow){color:var(--ink-soft);margin:13px 0 20px;line-height:1.5}@keyframes pulse{50%{opacity:.5}}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=1280px){.workspace{grid-template-columns:minmax(220px,250px) minmax(460px,620px) minmax(285px,320px);gap:20px;padding-inline:20px}.feedback-card{padding:15px}.chess-piece{font-size:clamp(34px,5vw,59px)}}@media (width>=1061px){.app-shell{height:100svh;min-height:0;overflow:hidden}.workspace{height:100%;padding-block:16px}.library-panel,.coach-panel{max-height:calc(100svh - 32px);top:16px}.coach-panel{scrollbar-color:var(--line-dark) transparent;scrollbar-width:thin;overflow-y:auto}.board-column{width:min(100%,660px,100svh - 260px)}.board-intro{min-height:48px;margin-bottom:10px}.board-frame{padding:8px}.board-player{min-height:38px}.board-player-top{margin-bottom:6px}.board-player-bottom{margin-top:6px}.board-actions{margin-top:10px}.board-keyboard-note{margin-top:7px}}@media (width<=1060px){.workspace{grid-template-columns:minmax(430px,620px) minmax(285px,340px);grid-template-areas:"library library""board coach";align-items:start;max-width:1000px}.library-panel{border-bottom:1px solid var(--line-dark);grid-area:library;grid-template-columns:auto minmax(230px,.8fr) minmax(300px,1.4fr);align-items:end;gap:12px;max-height:none;padding-bottom:16px;display:grid;position:static}.panel-heading{margin:0}.panel-heading>svg{display:none}.side-switch{grid-column:2}.search-field{grid-column:3;margin:0}.opening-list{flex-direction:row;grid-column:1/-1;padding:1px 0 3px;overflow:auto hidden}.opening-card{flex:0 0 190px}.opening-card:hover{transform:translateY(-1px)}.source-note{display:none}.board-column{grid-area:board}.coach-panel{grid-area:coach}}@media (width<=760px){body{background-image:linear-gradient(#d4af3705 1px,#0000 1px);background-size:100% 26px}.app-mark{width:36px;height:36px;box-shadow:3px 3px 0 var(--clay);font-size:23px}.workspace{flex-direction:column;gap:17px;width:100%;padding:16px 12px 32px;display:flex}.library-panel{grid-template-columns:1fr;gap:10px;width:100%;padding-bottom:13px;display:grid}.panel-heading{display:none}.side-switch,.search-field,.opening-list{grid-column:1}.opening-card{flex-basis:165px;padding:10px 11px}.opening-card strong{font-size:15px}.board-column,.coach-panel{width:100%;max-width:620px;max-height:none;margin-inline:auto;position:static}.board-intro{min-height:50px;margin-bottom:9px}.board-intro h1{font-size:clamp(23px,7vw,30px)}.board-frame{border-radius:7px;padding:7px}.board-player{min-height:38px}.player-piece{width:30px;height:30px;font-size:20px}.board-player-top{margin-bottom:5px}.board-player-bottom{margin-top:5px}.chess-piece{font-size:clamp(32px,11vw,65px)}.board-actions{z-index:30;border:1px solid var(--line-dark);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#0d0d0df2;border-radius:8px;grid-template-columns:1fr 1fr auto;padding:6px;display:grid;position:sticky;bottom:8px;box-shadow:0 8px 25px #00000073}.board-actions .secondary-button{padding-inline:9px}.notation-control>summary{width:40px;padding:9px;font-size:0}.notation-control form{right:-6px}.board-keyboard-note{display:none}.coach-panel{gap:10px}.feedback-card{min-height:150px}.variation-list{max-height:190px}.move-table{max-height:170px}}@media (width<=420px){.board-intro .eyebrow{text-overflow:ellipsis;white-space:nowrap;max-width:210px;overflow:hidden}.turn-pill{padding-inline:7px;font-size:7px}.board-player div span{max-width:160px}.board-actions{grid-template-columns:1fr 1fr 38px}.primary-button,.secondary-button{font-size:10px}.completion-actions{grid-template-columns:1fr}.session-change-card{padding:23px 18px 18px}.session-change-actions{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}